Friday, November 18, 2011

Murata Power Solutions today announced the 6000A and 6000B series of surface mount power inductors. Designed for energy storage, input or output filtering and DC/DC converter applications, these compact inductors offer what is believed to be the lowest DC resistance values currently available. Both series can accommodate high current throughput and offer a wide range of inductance values.

The 6000A series comprises 11 models, with inductance values ranging from 5.8 to 57.8 uH, maximum current values (Idc) from 4.9 to 14.5 A, and a DC resistance from 5 to 36 mOhm.

Offering inductance values from 47 to 680 uH the 6000B series has 8 models that accommodates maximum current from 3.0 to 10.5 A, and have a DC resistance of 13 to 135 mOhm.

The inductors are supplied in tape and reel packaging for high volume, automated surface mount assembly and comply with the J-STD-020D reflow process.

Murata Power Solutions today announced the UWS series of 50 Watt medium power isolated DC/DC converters that are available in either through-hole or surface mount configurations. Meeting the DOSA standard for sixteenth brick dimensions of 1.31 x 0.91 x 0.36 inches, these compact units accommodate the wide input range of + 18 to + 75 VDC around a nominal 48 VDC. Input to output isolation is rated at 2,250 VDC so that the output is protected from spikes, transients and noise on the input.

Within the series there are three models offering outputs of 3.3, 5 or 12 VDC. Up to 54 W output is available without the need for any forced air cooling. The 12 VDC unit suits regulated intermediate bus applications. The outputs are regulated to within +/- 0.125% across all load conditions. Also, the outputs may be trimmed +/- 10%, 3.3 VDC model, or +10% to -20% for the 5 and 12 VDC models allowing the user to compensate for voltage losses.

Suiting a broad range of data and telecommunications applications, the UWS series has many self-protection controls such as overcurrent, overvoltage, input undervoltage and overtemperature shutdown. For systems requiring controlled startup and shutdown, an external remote on/off control may be driven by a switch, transistor or logic signal. This control can be selected as either positive or negative polarity.

Accommodating a wide range of operating temperature from – 40 degrees C to + 85 degrees C the series has guaranteed operation over the normal industrial range.

The UWS series complies with the internationally recognized safety standards UL/EN 60950-1 and CSA-C22.2 No. 60950-1 2nd editions for IT and commercial equipment.

Murata Power Solutions today announced the MEE3 series of single output 3 Watt ultra compact DC/DC converters suitable for a wide range of industrial and telecommunications applications. These single-in-line 4 pin packages (SIP4) provide 50% more power than previous 2 W devices using the same industry standard package. In addition, compared to other 3 W converters that traditionally use a dual-in-line 24 pin package (DIP24), the MEE3 series is much smaller resulting in a 200% increase in power density from 0.9 to 2.68 Watts per cubic cm.

Within the series two modules are available offering either 5 VDC or 12 VDC inputs. The popular nominal outputs of 5, 9, 12 or 15 VDC are available across the full MEE3 range. Typical converter efficiency is from 83% to 89% and is model dependent. No additional forced air cooling or heatsinks are required. The series offers exceptional load regulation, typically in the range of 2.7 to 6.3%.

These fully encapsulated units offer 1,000 V input to output isolation and can deliver full power across the industrial operating temperature range of -40 to + 85 degrees C.

The MEE3 series complies with the internationally recognized UL/EN 60950 safety standard for IT equipment.

The converters provide a pin compatible power upgrade path from Murata Power Solutions’ 1 W NKE/NME and 2 W NML series

The highly reliable automated Model 61 Boiler Blowdown Control System from Electro-Chemical Devices (ECD) offers a complete, ready-to-use system providing continuous control of the surface blowdown rate for commercial and industrial boilers, optimizing blowdown cycles and reducing scaling and corrosion to reduce plant operating costs and extend boiler life.

With its precision accuracy, the automated Model 61 Boiler Blowdown Control System reduces boiler maintenance make-up water consumption and the energy needed to heat it. In comparison to performing blowdown cycles manually, the system offers operational cost advantages by continuously adjusting the blowdown rate to optimize the boiler water's electrolytic conductivity.

As boilers operate, dissolved solids accumulate in the water. When total dissolved solids (TDS) become overly concentrated, they can cause damage to piping, steam traps and other process equipment and form sludge in the boiler. The sludge impairs boiler efficiency and heat transfer capability. To avoid damage from TDS, boiler water must be periodically discharged, or blown down, and replenished with fresh feed water.

The Model 61 System calculates TDS levels by measuring conductivity in the boiler water. The conductivity measurement is made using ECD's precision CS10 Conductivity Sensor, featuring a standard range of 0-10,000 µS or optional ranges of 0-1000 µS or 0-100 µS. Outputs can be configured using the standard T23 transmitter, the optional C22 controller or optional T28 transmitter for Intrinsically Safe (IS) or Explosion Proof applications.

The complete Model 61 System includes ECD's CS10 Conductivity Sensor in a rack mounted panel. The system panel features a modular design for easy installation. It includes a sediment trap for easy removal of sludge buildup, sample cooler, temperature gauge, sample control valve and safety relief valve. All wetted materials are constructed of rugged 316 stainless steel. The process connection features a compression fitting of 0.75 inch NPT to accommodate the CS10 Sensor. The system is designed to operate from temperatures of 0-100°C and at a pressure range of 0-75 psig.

The Model 61 System's C22 Controller is a 110/220 Vac line powered, dual input device with one or more 4-20 mA outputs in addition to conductivity (pH, temperature, PID) and up to eight alarm relays as well as timers and logic functions. The C22's 4-20 mA output can be configured as a PID control output. The PID signal modulates a control valve to keep the surface blowdown rate uniformly close to the maximum allowable dissolved solids level, regardless of load conditions.

The Model 61 System comes standard with a NEMA 4X rated T23 transmitter, which is a two wire, 4-20 mA transmitter. For hazardous conditions, the FM- and CSA-approved T-28 Transmitter is an intrinsically safe, explosion-proof two wire 4-20 mA transmitter offering the standard conductivity output.

Electro-Chemical Devices has developed a flexible, user-friendly series of sensors for chlorine analysis, designed to easily and cost-effectively fit into chlorine monitoring systems in a wide variety of aqueous environments. The FCA-22 Free Chlorine Sensor, TCA-22 Total Chlorine Sensor and CDA-22 Chlorine Dioxide Sensor are high-accuracy amperometric sensors that are ideal for fresh water applications including monitoring of industrial cooling and rinse water, drinking water and wastewater.

FCA-22 Free Chlorine Sensor
The Model FCA-22 Free Chlorine Sensor is a low-maintenance, high-accuracy amperometric free chlorine sensor ideal for most aqueous environments. It features a long-lasting sensor that minimizes part replacement and technician labor expenses. The FCA-22 precisely measures free residual chlorine from 0.05 to 20.0 ppm Cl2, 5 to 9 pH and at temperatures from 32 to 122°F (0 to 50°C).

TCA-22 Total Chlorine Sensor
The TCA-22 Total Chlorine Sensor is designed for use in drinking water, industrial cooling and rinse water, wastewater or other fresh water samples containing chlorine in the range of 0-20 ppm, operating at a temperature range of 0-45°C. It is ideal for application in municipal water systems and a wide range of water-based processes in the chemical, electronics, electric power, food/beverage, oil/gas, pharmaceutical, pulp/paper and many other industries. The TCA-22's amperometric sensor features a three-electrode design that measures all chlorine species in the water, combined chlorine and free chlorine. The sensor is constructed with one gold cathode, one silver halide anode and a 304 stainless steel counter electrode which provides a stable base potential, minimizing drift for higher accuracy.

CDA-22 Chlorine Dioxide Sensor
The CDA-22 Chlorine Dioxide Sensor is a high-accuracy polarographic amperometric sensor with gold cathode and silver chloride anode and PTFE membrane. It designed to measure chlorine dioxide in concentrations ranging from 0.05-20 ppm CIO2 and operates at a wide temperature range of 0 to 50°C (32 to 122°F). It is ideal for applications in municipal water systems, industrial cooling and rinse water, wastewater or other fresh water samples. The low-maintenance CDA-22 can run for up to one year between electrolyte/membrane changes.

Panel Mount System Solution
The FCA-22, TDA-22 and CDA-22 Chlorine Sensors are also available as turn-key panel mount systems, featuring a simple "plumb-and-play" design combined with ECD's highly intelligent C22 Analyzer/Controller. These chlorine measurement systems are pre-wired and panel-mounted, featuring automatic pH compensation and flow control for superior chlorine monitoring.

Combining exceptionally accurate dissolved oxygen measurement with sensor self-cleaning and intelligent communications, the Triton DO8 Self-Cleaning Dissolved Oxygen Monitoring System from Electro-Chemical Devices (ECD) features the Triton DO8 Sensor, the AC10 Air Blast Spray Cleaner and the C-22 Controller.

With a state-of-the-art fluorescence quenching (FQ) sensing element, the breakthrough Triton DO8 Dissolved Oxygen Sensor is ideal for a wide range of municipal and industrial water treatment applications. The trouble-free Triton DO8 Sensor is designed with precision FQ optical technology coupled with intelligent microprocessor-based electronics. The self-monitoring DO8 stores calibration data within the sensor, which minimizes maintenance over long service intervals while providing stable, dependable DO measurement.

The Triton DO8 Sensor is highly accurate, featuring a maximum error rate of less than 2 percent, repeatability of ±0.5 percent and resolution of 0.01 ppm or 0.01 percent saturation. It operates over a wide measurement range with three different outputs from 0 to 20 mg/l (0-20 ppm), 0-200 percent saturation or 0-500 hPa (0-6 psi).

The rugged Triton DO8 Sensor was developed for tough municipal and industrial water treatment environments and is designed to withstand ambient temperatures from -20 to 60°C (0-140°F) and records measurements at temperatures from -5 to 50°C (20-120°F). It withstands pressures up to a maximum of 10 bar (145 psi).

Unlike amperometric sensors, the low-maintenance Triton DO8 has no membranes to replace, no electrolytes to refill and no anode/cathode assemblies to service or replace. The only service required is the simple replacement of the DO8's sensor cap, which lasts two years or longer, and the occasional wiping of the sensor head with a damp rag.

The AC10 Air Blast Spray Cleaner is available as either a single or dual channel system. It helps maintain sensor measurement accuracy in turbid water conditions by preventing the buildup of biofilms and other soft coatings, decreasing sensor maintenance cycles and helping to cut plant operating costs.

The AC10 minimizes inaccurate readings caused by films and coatings that develop over time on sensors, reducing sensor cleaning time and the amount of chemicals used for unnecessary water treatments. The AC10 uses pressurized air to generate an area of high turbulence in the water surrounding the measurement end of the sensor.

The AC10 Air Blast Spray Cleaner uses a highly reliable, high current contactor that assures years of trouble free service. It is available with either a 115 VAC 3.0 Amp or 220 VAC 1.3 Amp Air Compressor. It is housed in a rugged, corrosion resistant, fiberglass reinforced polyester enclosure. Installation options for the AC10 include wall mounting or an optional 2-inch handrail mounting system.

The Triton DO8 Sensor utilizes digital communications to send DO data to ECD's C-22 Controller, which provides a 4-20mA output signal to a water treatment plant's control room. The RS-485 digital signal is nearly immune to common EMI/RFI noise that is typically a problem in many plant environments.

Maintaining boiler water quality is easier than ever with the user-friendly CA-6 Online Analyzer from Electro-Chemical Devices, which uses colorimetric technology to accurately and reliably perform silica measurements.

When boiler water is contaminated with silica, scaling can occur. Silica picked up by boiler steam can be deposited on generator turbines and lead to blade corrosion and diminished boiler efficiency. Effective monitoring of silica levels in boiler water helps to determine how well a boiler's demineralizer system is working, protecting equipment and ensuring that power generation systems are functioning as safely and economically as possible.

The CA-6 Analyzer is available in models measuring silica at 0-1.0 mg/L, 0-10.0 mg/L or 0-60 mg/L. It can also utilize photometric differential absorbance to analyze over 20 other common parameters in addition to silica including: aluminum, phosphate, nitrogen, iron and sulfate. It operates at a wide temperature range of 5-50°C and offers repeatability of ±2% on the absorbance value if the turbidity <80 NTU and drift of ±2% per month on the absorbance measurement.

Lightweight and easy to install, the versatile CA-6 precision online sequential sampling analyzer weighs less than 40 pounds. It can be wall mounted or simply set on a bench using the optional Bench Top Stand. After the sample, waste and reagent lines have been connected to the analyzer and provided with power, the CA-6 will begin its preprogrammed analysis sequence. The CA-6 is available with up to 4 channels (optional) each from a separate sample point. A simple, user-friendly menu structure and touchscreen interface makes it easy to access information or customize analyses.

The highly accurate CA-6 Analyzer saves labor and money when compared to online ISE measurements that require significant sample conditioning. With the CA-6, the result is a faster, more accurate measurement requiring fewer consumables with less waste to reduce overall operating costs.

The CA-6 Analyzer features a user-friendly touch-screen display that shows the measured parameter, analyzer status, percent reagent volumes, time and the menu bar, which provides access to the Run, Display, Program, Service and Help menus. It includes two alarm relay outputs and a 4-20 mA channel that connects with PLC's or distributed control systems.

The CA-6 is rugged and reliable. It is enclosed in an epoxy powder coated, cold rolled steel cabinet and features two separate compartments to isolate liquids and electronics. The liquids enclosure houses all the components necessary for sampling and reagent flow, mixing and reaction stages (sampling pump, reagent micro-pumps and colorimetric reaction cell). The electronics enclosure contains the main power supply, the controller printed circuit board assembly and the touchscreen interface.

The CA-6 Analyzer makes it easy to create customized analysis routines and access results via the touchscreen unit's simple menu structure and function commands. It can be programmed with numerous analysis configurations, depending on the accessories and the number of micro-pumps mounted in the liquids enclosure.

Tuesday, January 18, 2011

USB-Capable Power Sensors

Rohde and Schwarz (RandS) has announced the NRP Z85 and NRP Z86, wideband sensors that measure power from 50 to 40GHz, suitable for microwave and radar development, maintenance and research. Instead of a base unit, the sensors are connected to a PC via a USB interface. This cost-efficient solution displays envelope power over a dynamic range of 47 to +20dBm. High-resolution pulse analysis is another exceptional feature.

Additionally, the RandS NRP Z85 and RandS NRP Z86 provide high-precision continuous-average measurements over the entire dynamic range from 60 to +20dBm. These performance characteristics make the sensors suitable for a variety of applications in the development and maintenance of microwave and radar systems as well as in the design and production of microwave components. The wideband power sensors can be operated from a PC via the RandS NRP Z4 USB adapter, or in combination with an RandS NRP/NRP2 power meter.

They can also be connected to any signal generator or virtually any signal, spectrum and network analyser from Rohde and Schwarz. Users can read the power measured from the DUT directly at the generator or analyser. A complete measurement solution comprising an RandS NRP Z85 or Z86 and an RandS NRP Z4 USB adapter is significantly more cost-effective than a conventional setup involving a power sensor and a power meter. With a video bandwidth of up to 30MHz and a sampling rate of 80MHz, the RandS NRP Z85 and Z86 are suited to analysing the time characteristics of modulated signals.

The rise time of less than 13ns enables easy measurement of the most frequently analysed pulse shapes. The power sensors can measure both peak power and average power over a defined time interval as well as perform statistical signal analysis (CCDF, PDF). With a measurement uncertainty of 0.18dB at 40GHz, these sensors offer good accuracy for continuous-average measurements. This combines with the sensors' other exceptional performance features to make them the market benchmark in peak power applications.

The power sensors' automatic pulse-analysis function provides peak power and average power measurements as well as detailed information on other important power and time characteristics of pulsed signals. These include, for example, pulse top level, pulse duration, pulse period, pulse duty cycle, and pulse rise and fall times. Using equivalent time sampling, the RandS NRP Z85 and Z86 can display pulsed signals with a very high time resolution.

This is done by sampling a series of consecutive waveforms of a pulsed signal. The measurements are time-shifted relative to one another, yielding a compacted sequence of samples, which over time are combined into a complete waveform. The new RandS NRP-Z85 and RandS NRP-Z86 wideband power sensors are now available from Rohde and Schwarz. The RandS NRP Z85 connects to the DUT via a 2.92 mm connector, the RandS NRP Z86 via a 2.4 mm connector.
Embedded Computer for Factory Robots and Vehicles

Nexcom has expanded its range of fanless embedded systems with the launch of the NISE 2100A Series, designed for a host of industrial computing applications within extreme environmental conditions. Housed in a rugged aluminium chassis, NISE 2100A has been designed to operate in temperatures of between -20 to 70C. This feature enables NISE 2100A to function in the severe environmental conditions usually associated with factory automation, industrial automation or transportation.

It incorporates a 1.8GHz Intel Atom D525 Dual Core processor with ICH8M PCH chipset. This advanced Intel-based technology boasts 50 per cent better performance than the previous generation of Atom N270 CPU, with only a small increase in power consumption. Using onboard DDR3 memory, NISE 2100A is capable of fulfilling mainstream market requirements for increased performance with lower system configuration costs.

The NISE 2100A is suitable for a wide variety of diverse applications and therefore is equipped with a multitude of I/O interfaces including Dual LAN, four RS-232 COM ports, two RS232/ 422/ 485 COM ports with 2.5 KV isolation protection, four USB 2.0, one VGA and GPIO port. In addition, for applications which require PCI expansion, a variant known as NISE 2110A is also available.

With a wide range of DC inputs, from 9 to 36V, as well as a built-in SIM-card holder and mini-PCIe socket, NISE 2100A series is suitable not only for industrial and factory automation but also for wireless communication, in-vehicle computer applications, transportation control systems, such as Kiosk, self-service machine and ticket machine.
Welded-Steel Housing for Industrial Hardware

Amplicon's Industrial Computing group has released a range of industrial-grade cabinets suited to housing Amplicon's industrial rackmount computers, data communication and test equipment. Designed for the rigours of industrial-grade applications, the range is constructed from a rugged, welded-steel housing with mesh doors, to provide optimal airflow for the valuable industrial hardware contained within.

Available in a wide range of sizes to suit the hardware required, with heights up to 45U and depths to 1,200mm, the cabinets have the potential to allow up to 45U of rackmount equipment to be consolidated into a compact 600 x 600mm footprint.

With simplicity in mind the new range can be supplied as a fully integrated turnkey solution, supplied ready for use, or alternatively as a versatile starter kit, supplied with everything needed to get up and running with a customer's own cabinet integrations, including power distribution, cable management and fixings. The cabinets come complete with U-marked uprights to assist with these integrations.

Amplicon's cabinet integration service allows complete rackmount solutions to be professionally built against your own technical drawings and specification, allowing every last detail of the cabinet configuration and fitted hardware to be captured and easily replicated. The service allows an entire cabinet integration to be fully managed by Amplicon, consolidating and simplifying the supply chain to a single order and substantially reducing purchasing costs of more complex integration projects.
Smallest 4A Switching Regulator Simplifies Designs and Improves Reliability

Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX15040, a low-voltage (2.4V to 3.6V), synchronous switching regulator in a 2mm x 2mm wafer-level package (WLP). This miniature step-down regulator integrates MOSFETs to simplify design, minimize EMI, improve reliability, and save board space. The MAX15040 operates from a fixed 1MHz switching frequency to further reduce total solution size, as it allows all-ceramic-capacitor designs. Offering efficiencies up to 94% at full load current (4A), this point-of-load regulator minimizes power loss in applications such as telecom, networking, and server equipment.

Other features include an enable input and power-good indicator for power sequencing, adjustable soft-start for controlled turn on, and the ability to safely start up into a prebiased output. The MAX15040 provides ±1% output-voltage accuracy over temperature and is fully specified over the -40°C to +85°C extended temperature range. Prices start at $2.17 (1000-up, FOB USA).

Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 6400 products serving the industrial, communications, consumer, and computing markets.
Satellite IF Switch IC Expands to Allow 16 Signals

Maxim Integrated Products has introduced the Max12005, an 8 x 4 satellite IF switch IC that is flexible and adaptable to suit space-constrained, satellite IF distribution and multiswitch applications. Its 8 x 4 matrix is configured with an additional IF switch input so that it can expand to accept up to 16 satellite input signals.

The Max12005 supports a single, quad low-noise block (LNB) with vertical or horizontal polarisation signals that can be matrix-switched to four satellite receivers. A configuration of eight satellite IF inputs to eight satellite receivers is also possible by using two Max12005 ICs and adding eight input splitters. Signal quality is maintained even with high cable-signal losses.

Four integrated 9:1 multiplexers with variable-gain input and output amplifiers provide sufficient gain to compensate for the signal-path losses in the cable distribution and for switch insertion losses. To save space and cost, the Max12005 utilises two control methods: DiSEqC 2.0 decoding and tone/voltage decoding. These control methods enable four operational modes, which include LNB mode for use within the LNB mentioned above, cascade master mode, cascade slave mode, and single mode.

Furthermore, the four embedded DiSEqC decoders eliminate the need for external control components. The Max12005 is fully specified over the -40 to +85C extended temperature range and available in a small 7 x 7mm, lead-free, 48-pin TQFN package. Prices start at USD7.44 (GBP4.69).
MEMS Oscillator has Low Power Consumption

MSC now offers SiTime's SiT8004 MEMS oscillator in the 125 to 150MHz frequency range, with low standby current, suitable for use in 'green' DDR, SAS, SATA, HDMI and video pixel clock applications. Key features include 6.5mA typical power consumption and 1.2uA ultra-low standby current. Frequency stability of the oscillator device varies between +/- 20 and +/- 50ppm, according to the supply voltage of 1.8, 2.5, 2.8 or 3.3V applied.

Four industry-standard packages from 2.5 x 2.0 to 7.0 x 5.0mm are available. Thanks to its 50 to 75 per cent lower power consumption compared to similar standard quartz oscillators, the SiT8004 is suitable for use in 'green' DDR, SSD, SAS, SATA, HDMI and video pixel clock applications as well as 1-Gigabit Ethernet, GPON and EPON network applications.
MLCC Capacitors can be Used in Harsh Environments

Now available, Holy Stone's compact 'Verti-Zontal' (vertically oriented, horizontally stacked) MLCC capacitors are designed for applications with limited headroom, requiring a high-CV product. This SVZ Series orients individual capacitors vertically, limiting the overall height while the stack itself extends horizontally across the mounting area on the board.

The low ESR design allows for very high CV in the available footprint space. The compact yet high-CV design of these Verti-Zontal stacks is suitable for power applications including input and output filters. Its lead frame construction isolates the MLCC from both thermal and mechanical stresses, which can be problematic with large capacitors.

The Holy Stone design provides outstanding mechanical integrity as the design provides for individual leads to be centred on each cap insert. The low centre of gravity provides superior shock and vibration resistance, so they can be used in harsh environments. The SVZ series is also available using Holy Stone's high-temperature dielectric in temperature ratings up to 200C, in which case it is called the HVZ series.